Combustion-engine speed governor



1511.13, 1931. v H. s. STARK 0 COMBUSTION ENGINE SPEED GOVERNOR Filed April 2s 1928 2Sheets-Sheat 1 Inventor Hwm As. Svfarlr Attornqy Jan. 1931. r H; STARK v ,788,780

' COMBUSTION ENGINE SPEEDYGOVERNOR Filed April 26 1923 ZSheets-Sheqt 2 [r2 veritar Attorney Jain;13 1931 v Emmi ga e, mimsymnnmsom, V i i ceafiebs'imieeimims m GOVERNOR;

p i y nors ave previoujsi insnances pl'acea Eurtherin01 e, t he natunegof this ""Figufe' iea Se t o he c n. c i of tlie ino'torfiijiiyfbe M15 tHe" iiiofoi dgi'siigmite I w c ifelence chifacteif p ie s jn J eniflietlieif obje'cts' in consists-bf .af relhtivel "U liep view as th nfatui iiiveiitionwill'be porting '30befifiifi1'1iderto6d, thesaine comprises the 7 novel form, combination and arrangement t cipro-Videepang: of parts hereinafter'cmore fully described, upwerdl'y' vi itli"Ieef shown in the accompanying drawingsandc E B 1I1921 I 5 claimed. r i Thiqli W 'IfiOfifl 35 In the accompanying drawings wherein qp mng w e "like reference characters indicate corre #PWMMiQ? 9 19 1 1 sponding parts throughout thesame: and t the 1915 5 Figure 1 is a'fragmentary plan'view parthe h 7 tially in cross section" of 2 Well known type of'internal combustion engine equipped with my improved.speedgovern'or.

Figure Qisa bottom side perspective of theclnember constructed fer associationwith 4 I 4'5 'theibutterfly valvefalm so as to cause the 5h g5 epening and closing movement; of the butterja k' f fid fh valve when a, load is placed upon the ent li i gdfit fi36312 1 gine-or relievedthere'from; I V V j F g r 3 1 perspective View of thecon necting rocker shaft .lbetween the governor- Fan'sverse'seetipn throuii 5 i associated with a collar '14, slidable upon said shaft, which collar is associated with a rod 23 moving the'butterfly valve A in a closing direction against the action of the spring 28, preventing the motor from racing, and maintaining a uniform speed regardless of the load thereon. Obviously as the load upon the motor increases, the speed thereof decreases, resulting in the opening of the valve a predetermined-extent so as to bring up the speed of the motor to the proper degree, and vice versa.

The; speed ofthe motor may be regulated at will by an adjustment of the thumb nut :27 which will increase or diminish the tension of the spring 28.

Having {thus described the lnvontion, what I claim' as new and desire to secure by circumferential groove to loosely receive an: tter Patent is inverted U-shaped yoke ls Pivoted too-pposed points of this yoke is an-upwardly extending fork 16 to the upper, end of which is keyed one end of a rock shaftl'fi 'lhis rock shaft is extended transversely across thetop of the motorA, the same being guided by a suitable bracket .18 associated with the outermost arm G of the governor supporting frame 5, said sliaft being further guided jandsupported by a bracket 19 n ranged upon the topside of the motor, see Figure 1.

For association with the arm I) of the butter'fiy valve a'there' is provided a triangular shaped plate 20,'the wide end of'which is provided with a pair of spaced ribs 2l21 between which, the said arm 6 is. arranged and-secured therein by a vcotterv pin 22 01; other 1 suitable means.

, The,.outer narrow endof this plate "'20 is'provided with an opening, while loosely engaged therein is a forwardly extending connecting rod 23,,the front vend of this connectingrod being pivotally associated with the downwardly ex tended cranked end 21 of said rock shaft 17.;

Arranged upon the side of the motor adjacent the iiital re'inanifold and at the forward.

end thereof is an L-shaped bracket 525, through an opening inthe outer end of which'extends an elongated threaded pinQG,

} and upon the outer end of which is threaded a wing nut 27.; The inner end of this" pin 1; A support for governors including a rotary shaft; a U- shapediraine, constructed ofsheet metal, the leg portions of the frame termediacie's, in acute angular positions, an" annular shaft bearing body for removable disposition 'within the crotch of each leg, one end 'of each bearing body 'being'provided with a flange for abutment against the crotch portion of the,"correspondingleg and a securing element toprevent accidental displacement of the said body, the free ends of the U-sha'ped frame being adapted to be socured to a suitable supporting structure,

In testimony whereof I affix inv signatl'ur.

; HERBERT s. "STAR is'attached to a retractile coil spring 28, while the inner end: of said spring is connected to the valve arm plate'20, by a connecting pin 29, this spring normally main-1 taining a pull upon the plate 20 so as to maintain thebutterfly valvea inopen position." Trained over the pulley 12, of-"the governor shaftlOand the fan pulley 1C isa belt 30 for imparting rotation to the shaft 10 of said'governor. Obviously duringthe operation'of theengine the shaft l0 will be rotated, throwing the'w'ei'ghts 1313 outwardly for sliding the upon said' shaft 20. i

rThis action will cause the rocking ofethe collar 14 inwardly shaft seas topushupon theconnecting- H i I 

